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Novel high-performance conformal array antenna

A conformal array, high-performance technology, used in antennas, antenna coupling, antenna arrays, etc., can solve problems such as poor anti-interference ability, low gain, narrow bandwidth, etc., to improve antenna gain, increase bandwidth, and increase the amount of coupling. Effect

Inactive Publication Date: 2019-10-11
UNIV OF ELECTRONIC SCI & TECH OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is the technical problem of low gain, narrow bandwidth and poor anti-interference ability existing in the prior art

Method used

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  • Novel high-performance conformal array antenna
  • Novel high-performance conformal array antenna
  • Novel high-performance conformal array antenna

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Embodiment 1

[0039] This embodiment provides a novel high-performance conformal array antenna, and the novel high-performance conformal array antenna includes a conformal array antenna unit arranged in an array; figure 1 , the conformal array antenna unit adopts a two-port feeding traveling wave antenna H-shaped slot coupling feeding structure, such as Figure 2-Figure 9 and Figure 13 The conformal array antenna unit includes a fourth-layer dielectric substrate, a third-layer dielectric substrate, a second-layer dielectric substrate, and a first-layer dielectric substrate stacked from top to bottom; a parasitic patch is arranged in an array above the fourth-layer dielectric substrate, A miniaturized radiation patch with a second-order Minkowski fractal structure corresponding to the position of the parasitic patch is arranged under the fourth layer of dielectric substrate; a liquid crystal tank for filling liquid crystal material to form a liquid crystal material layer is arranged in the...

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Abstract

The invention relates to a novel high-performance conformal array antenna, and solves the technical problems of low gain, narrow bandwidth and poor anti-interference capability. The antenna comprisesconformal array antenna units arranged in an array, wherein the conformal array antenna units use a traveling wave antenna feeding structure with two-port feeding, and the size is reduced through thefractal technology, so that the radiation influence of a curved surface on the antenna units is reduced; a slot coupling feed structure is adopted to improve the bandwidth of the antenna units, reducethe surface wave loss of the antenna unit and enable the radiation element to be better isolated from the feed network. A liquid crystal tuning circuit is adopted to apply a liquid crystal material to an antenna unit; the liquid crystal equivalent dielectric constant is changed through electric tuning, so that the resonant frequency of the antenna unit is changed, the radiation characteristic ofthe conformal array antenna unit in a required frequency band is controlled, the contribution of different antenna units to a main wave beam is controlled, the anti-interference capability is enhanced, the problem is better solved, and the conformal array antenna can be used in an antenna.

Description

technical field [0001] The invention relates to the field of communication antennas, in particular to a novel high-performance conformal array antenna. Background technique [0002] The conformal array antenna is an array antenna attached to the surface of the carrier and bonded to the carrier, that is, the array antenna needs to be conformally installed on a surface with a fixed shape to form a non-planar conformal antenna array. However, due to the large volume, narrow bandwidth, and low gain of traditional conformal antennas, it is difficult to use them in practical engineering. With the development of printed circuit technology, microstrip antennas have the advantages of light weight, small size, low profile, low cost, easy control of polarization, and easy conformality with the carrier, etc., which are very suitable for the design of conformal antennas. Microstrip conformal antenna, which combines the two concepts of conformal antenna and microstrip antenna, is not onl...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q5/10H01Q5/314H01Q21/00H01Q21/06
CPCH01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q5/10H01Q5/314H01Q21/0006H01Q21/065
Inventor 蒋迪陈志宁王振李潇雨
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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